On 2020-06-29 17:31, Patrick McDonough wrote:
Howdy. I'm working on getting Dragonfly 5.8 running on a reasonably
recent Macbook Air (2017), with the intent to update the
DragonFlyOnLaptops page with something a touch newer. The only real
issues I've faced are audio and trackpad related, as I've skirted around
dealing with Broadocm wifi using a cheap adapter board.
Audio mostly works with snd_hda_load="YES" in loader.conf without
further configuration. However this is only on pcm2, which is the
headphone output. For speakers (pcm1) to work, I had to fiddle with the
gpio configuration.
sysctl dev.hdaa.1.gpio_config=0=set
Dandy. The trackpad less so.
I'm seeing seemingly random middle and right clicks when using the
trackpad. It only happens when the trackpad is in use - so using a USB
mouse alleviates the problem entirely. However within seconds of moving
the cursor using the trackpad, I'm accosted by either middle or right
click events.
My configuration is a default XFCE4 desktop on Xorg, with everything
installed through pkg. dbus, moused, and hald are the only additional
services enabled in my rc.conf.
If anyone has a clue, that would be great. Failing that - a link to the
man/code for the relevant subsystem handling the trackpad
(xorg-input-something? moused?) would be welcome.
Patrick
I thought I'd make an update, as I'm at the point where I have a working
trackpad.
I spent some time yesterday trying to pinpoint where the problem was
occurring. I work almost exclusively in Xfce on this laptop, so I
naturally saw the problem there most of the time. Wanting to either pin
it on Xfce, Xorg, or something lower, I fired up moused with debug
output on the console. Pretty consistently, I'd see button presses in
the output while only moving the cursor. So I put Xorg aside and started
looking at drivers.
FreeBSD has two drivers for Macbook trackpads, atp and wsp, and I was
curious if there had been any work done to bring them over. A few
searches later I found
https://www.dragonflybsd.org/~swildner/0001-WIP-atp-4-wsp-4.patch - work
done by Sascha Wildner a few years ago. Unfortunately, but reasonably
given the age, the patch didn't apply cleanly. So I pulled out the wsp
code, slipped it in by hand, and ran a make nativekernel.
After a reboot, I pointed moused at /dev/wsp0, and was delighted to see
a working trackpad, including two-finger-right-click and
two-finger-scrolling.
I'd be curious why the patch never made it into the tree. While I can't
vouch for the atp code as I didn't touch it, the wsp module built
without changes and worked first time.
Patrick
